Electric water-heater.



No. 800,084. PATENTED SEPT. 19, 1905. W. C. DICE.

ELECTRIC WATER HEATER.

APPLICATION FILED DEC. s, 1904.

f5 if il ecnna 30 tional view on line 3 3 of Fig. 1.

EUNITED STATES PATENT OFFICE.

l/VILLIAM C. DICE, OF SEATTLE, IVASHINGTON, ASSIGNCR, BY MESNE AS- SIGNMENTS, TO CLIMAX ELECTRIC HEATER AND MANUFACTURING COMPANY, OF SEATTLE, IVASHINGTON, A CORPCRATION OF YASH- INGTON.

ELECTRIC WATER-HEATER.

Patented Sept. 19, 1905.

Application filed December 6, 1904. Serial No. 235,697.

To a/ZZ whom t may concern:

Beit known that I, VILLIAM C. DICE, a citi- Zen of the United States, residing' at Seattle, in the county of King and State of Vashington, have invented new and useful Improvements in Electric rater-Heaters, of which the following is a specification.

My invention relates to certain new and useful improvements in electric water-heaters,

IO being of a portable nature and adapted to be connected with an Ordinary electric-lamp socket, whereby the required current for heating is obtained.

The invention has for its primary object I5 the production of a device of this type which while being simple in construction is comparatively inexpensive. to manufacture and etlicient in operation.

Further objects and advantages will be set 2O forth in the following' description, and those featuresof novelty upon which I desire patent protection defined in the appended claims.

In the accompanying drawings, in which like numerals of reference indicate like parts throughout the several views, Figure l is a longitudinal sectional view of my improved heater. Fig. 2 is a fragmentary View of the upper portion of the casing and showing the cam-slots thereof. Fig. 3is a transverse sec- Fig. 4 is a similar section on line 4 4 of Fig. 1; and Fig. 5 is a View, on a reduced scale, of my improved heater connected with a suitable length of wire which is provided on its free end with a plug adapted for insertion into the ordinary electric-lamp socket.

In carrying out 1ny invention I provide a suitable casing 1, which incloses the core 2, the latter having its upper portion of a diameter to snugly lit in said casing and theremaining portion of its length of a reduced diameter, so as to be entirely spaced from the casing. By this construction the core is formed with an external shoulder 3, which bears on an internal shoulder4 of the casing,

and thereby limits the inward movement of the core.

The casing is formed of any suitable material, preferably aluminium, and has that portion lying below its shoulder 4 perforated.

Both of its ends are also open, and when the core is inserted with its shoulder 3 resting on the shoulder 4 of the casing the upper end of the core will lie approximately flush with the upper edge of the casing, so that when a cap, as 5, is placed on the casing, as will be explained in the following, the core will be clamped firmly against the shoulder 4.

The core 2, which is preferably formed of porcelain, has its lower end spaced from the adjacent end of the casing and is formed with a longitudinal opening' 6, which increases the heating-surface of the core, and by reason of radial vents 7, which extend from the opening 6 to the surface of the core, communication is established with the space between the core and the casing, thereby permitting' of proper circulation of the water in the opening G.

wire of high resistance which is wound on the core 2 in an external groove thereof, and wires 10 and 11 of low resistance lead from the opposite ends thereof to socket 14. This socket 14 is of ordinary construction and is embedded in the upper end portion of the core, and a'contact 12 is carried by the socket and insulatedtherefrom. lire 11 is connected with the upper end of the coil 8 and extends through an opening, as 15, in the core, which terminates in a groove at the side of the socket 14, to which socket said wire is connected. Tire 10 is connected with the lower end of the coil 8 and extends through said opening 6 to contact 12. By this arrangement it will be observed that the wire is protected by the core.

Reference-mimeral 16 indicates a wire connection through the medium of which the heater is connected with a source of electrical supply, the same being provided with a plug 17 of ordinary construction, adapted to be inserted into socket 14, with the wire-terminals thereof contacting with contact 12 and the socket, respectively, and a similar plug 18, adapted for insertion into an ordinary electriclamp socket.

The cap 5 bears on the upper end of the core 2 and is formed with an opening through which plug 17 is inserted into position, and has an edge flange 18, which snugly lits the upper portion of the casing. On the inner face of this flange are diametrically opposite pins 19, adapted for reception in cam-slots 2O IOO of the casing, the same extending from the upper edge thereofl and having their loweil portions cut at an obtuse angle, so that the cap when given a partial rotation will be tightly clamped onto the casing and in turn clamp the core firmly against the shoulder 4 of the casing. As the pins 19 when arranged in the slots 2O project slightly beyond the inner surface of the casing, I form the core with an annular groove 21 of suitable depth to clear the ends of the pins during their movement.

My invention is of compact form and therefore will require but little space in being transported and in practice. Being capable of connection with an ordinary electric-lamp socket, it can be quickly connected for heating water when desired.

In operation the casing l is partially submerged in water, preferably to the top row of perforations thereof, the water being contained in any desired vessel, and the water will circulate through the perforations of the casing, the open lower end thereof about the reduced portion of the core, and through the opening 6 and vents 7 thereof, and consequently be heated.

Having thus fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In an electric water-heater, a core, a socket in one end thereof, a coil wound on said core and being electrically connected with said socket. l

2. In an electric water-heater, a core formed with a longitudinal opening, a socket in one end of the core, a coil wound on said core, and connecting-wires leading from said coil to said socket, one of said wires extending through the opening of said core.

3.` In an electric water-heater, a core formed with a longitudinal opening' extending from one end and vents leading from said opening, a socket in the other end of said core, a coil on said core, and connecting-wires leading' from said coil to said socket, one of said wires extending through the opening' of said core.

4. In an electric water-heater, a core formed with a longitudinal opening and Vents cornmunicating therewith, and a heatingcoil wound on said core.

5. In an electric water-heater, acore formed with an opening and vents leading therefrom to the surface of the core, a heating-coil encircling said core, and a wire connected with said coil extending through the opening of said core.

6. In an electric water-heater, a casing, a core arranged therein, a socket in one end of said core, a coil wound on the core and electrically connected with said socket, and means for admitting water into the casing.

7. In an electric water -heater, a casing formed with an internal shoulder, a core formed with a shoulder, means for clamping the shoulder of said core onto the shoulder of said casing, and a coil for heating said core.

8. In an electric eater-heater, a casing formed with an internal shoulder, a core arranged therein and being formed with a shoulder bearing on the shoulder of said casing, a coil for heating said core, a cap bearing on one end of said core and means for clamping said cap to the casino.

9. In an electric water heater, a casing formed with an internal shoulder and having cam-slots, a core fitting in the casing and being formed with a shoulder bearing on said first-named shoulder, a coil for heating said core, a flanged cap bearing on one end of said core, and pins carried by the iiange of said cap engaging in the cam-slots of said casing.

lO. In an electric water-heater, a casing, a core in said casing, said core having a portion of its length reduced in diameter and out of contact with the casing, the remaining portion snugly fitting in said casing, a shoulder carried by said casing, means for holding the unreduced portion of said core against said shoulder, and a coil arranged on the reduced portion of said core.

l1. In an electric-water-heater, a perforated casing, a core having its upper portion snugly fitting in said casing and its lower portion reduced in diameter, a coil wound on the reduced portion of the core, a shoulder carried by said casing, and a cap'clamping said upper portion of the core againstsaid shoulder.

12. In an electric water-heater, a casing having an open lower end, a core having its upper portion snugly litting in said casing and its lower portion reduced in diameter, asoekct in the upper portion of said core, the lower portion of said core being formed with a longitudinal opening', and vents leading therefrom, a coil wound on said core, wires leading from said core to the socket, said casing opposite the reduced portion of said core being perforated, and means for securing said core in the casing.

13. In an electric water-heater, a casing formed with an internal shoulder, a core having a reduced portion formed with a longitudinal opening and vents leading' therefrom, the unreduced portion of said core bearing on said shoulder, a coil on the reduced portion of said core, said casing being formed with perforations opposite the reduced portion of said core, a socket in the unreduced vportion of said core, a cap bearing on said core and having an opening in alinemcnt with the socket thereof, and means whereby when said cap is rotated it will be clamped to the casing.

14. In an electric water-heater, a casing formed with an internal shoulder and having cam-slots, a core having a reduced portion formed with a longitudinal opening and vents IOO IIO

leading therefrom, the unredueed portion of i pins secured to the flange of said cap and ensaid core bearing on said Shoulder of the easgaging in the cam-slots of the easing. IO ing, a coil on the reduced portion of Said core, In testimony whereof I aHiX my signature in said easing; being formed with perforations presence of two Subscribing Witnesses.

5 oppoete the reduced portion of the Coil, a IVILLIAM C. DICE.

socket in theunredueed portion of said eore, Witnesses: it fianged cap bearing on said core and having i J. JEROME LIGHTFooT,

an openingl in alinement with said socket, and l LEWIS T. BoYNToN. 

